User Manual

ManualsBrandsADC Telecommunications ManualsElectronicsDigivance SCSSMR 800/900 MHz and 1900 MHz System

Table Of Contents

SECTION 3: OPERATION
- 1 BEFORE STARTING OPERATION
  - 1.1 Tools and Materials
  - 1.2 Readiness Check
    - 1.2.1 Host Unit Installation Checks
    - 1.2.2 Remote Unit Installation Checks
- 2 TURN-UP SYSTEM AND VERIFY OPERATION
SECTION 4: MAINTENANCE
SECTION 5: GENERAL INFORMATION

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Page 2-19

6 SPECIFICATIONS

Refer to the following tables for the system, host unit, and remote unit specifications. All

specifications apply after a five minute warm-up period.

Table 2-5 – SCS 800/900 MHz SMR system nominal specifications

Table 2-6 – SCS 800 MHz system nominal specifications

Table 2-7 – SCS 1900 MHz system nominal specifications

Table 2-8 – Host Unit nominal specifications

Table 2-9 – WDM nominal specifications

Table 2-10 – Remote Unit nominal specifications

Summary of content (49 pages)

PAGE 1
ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION 6 SPECIFICATIONS Refer to the following tables for the system, host unit, and remote unit specifications. All specifications apply after a five minute warm-up period.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-5. SCS 800/900 MHz SMR System Nominal Specifications PARAMETER SPECIFICATION Optical - Host and Remote Unit Fiber type 9/125, single-mode Number of fibers required 1 for single-band remote unit 2 for dual-band RU Forward path wavelength 1550 nm Reverse path wavelength 1310 nm Optical transmit power output Host Unit Remote Unit Optical budget REMARKS All SCS remote units include a WDM. 0 dBm +1.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-5. SCS 800/900 MHz SMR System Nominal Specifications, continued PARAMETER SPECIFICATION REMARKS Composite RF Output power of both 38.1 dBm (6.5 Watts) at remote 10 Watts at LPA output bands (see Note 1at end of table) antenna port with –40 dBm input Configurable RF Output Range Step size Transmit path insertion loss RF Reverse Path - 800/900 MHz System bandwidth 31 dB at remote unit 1 ± 0.5 dB ± 10% of attenuation monotonic 1.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-6. SCS 800 MHz System Nominal Specifications PARAMETER SPECIFICATION Optical - Host and Remote Unit Fiber type 9/125, single-mode Number of fibers required 1 for single-band remote unit 2 for dual-band RU Forward path wavelength 1550 nm Reverse path wavelength 1310 nm Optical transmit power output Host Unit Remote Unit Optical budget REMARKS All SCS remote units include a WDM. 0 dBm +1.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-6. SCS 800 MHz System Nominal Specifications, continued PARAMETER SPECIFICATION REMARKS Two-tone Intermodulation <–55 dBc at remote output Two tones @ 5 Watts each CDMA Intermodulation 885 kHz to 1.25 MHz 1.25 to 1.98 MHz 1.98 to 2.25 MHz –45 dBc per 30 kHz –8 dBm per 30 kHz –55 dBc per 30 kHz Nominal composite RF input signal level –40 dBm at 0 dB attenuation –9 dBm at max.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-6. SCS 800 MHz System Nominal Specifications, continued PARAMETER Configurable RF output Range Step size SPECIFICATION REMARKS 31 dB 1 ± 0.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-7.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-7. SCS 1900 MHz System Nominal Specifications, continued PARAMETER SPECIFICATION Spurious In-band self generated Free dynamic range –13 dBm at remote output 60 dB at 30 kHz bandwidth Transmit peak-to-average 10 dB Two-tone Intermodulation –55 dBc at remote output two tones at 5 Watts each CDMA Intermodulation 885 kHz to 1.25 MHz 1.25 to 1.98 MHz 1.98 to 2.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-7. SCS 1900 MHz System Nominal Specifications, continued PARAMETER SPECIFICATION REMARKS Spurious (in-band self generated) –110 dBm referred to input ALC not invoked Intermodulation –62 dBc two tones at –50 dBm System noise figure 8 dB at mid-band ALC not invoked Configurable RF output Range Step size 31 dB 1 ± 0.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-8. Host Unit Nominal Specifications PARAMETER SPECIFICATION REMARKS 3.5 × 17.1 × 12.2 inches (88 × 433 × 311 mm) 3.5 × 17.2 × 15.3 inches (88 × 437 × 389 mm) Dimension for width does not include the mounting brackets which can be installed for either 19- or 23-inch racks. Mounting 19- or 23-inch rack EIA or WECO Weight 18 lbs. (8.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Table 2-10. Remote Unit Nominal Specifications PARAMETER Physical/Environmental/ Electrical - Remote Unit Dimensions (L×W×D) Single-Band Dual-Band and Interim Single Band SPECIFICATION REMARKS 29.4 × 9.7 × 5.7 inches (747 × 246 × 145 mm) 37.3 × 10.2 × 7.5 inches (947 × 259 × 191 mm) Mounting Pole, wall, or strand mounted Requires accessory kit for strand mounting Weight Single-Band Dual-Band and Interim Single Band 51.2 lbs. (23.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION Blank Page 2-30 © 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION SECTION 3: OPERATION Content 1 2 Page BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.2 Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 1.2 Readiness Check Before starting the turn-up process, inspect the complete Digivance system to verify that all components of the system are ready to be powered-up. This will ensure that no units of the system will be damaged during turn-up and that all existing systems will continue to function properly. 1.2.1 Host Unit Installation Checks Complete the following checks at the HU prior to starting the turn-up process: 1.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Each Digivance system must be turned-up separately before being networked together with multiple systems through the CAN interface. Use the following procedure to turn-up each Digivance system: 1. Temporarily disconnect the external alarm system or notify the alarm system provider that testing is in progress. 2. If the HU is networked together with multiple HU’s, temporarily disconnect the CAN cables from the NET IN and NET OUT ports of the HU.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 9. Start up the EMS software program. The EMS main window will open as shown in Figure 3-1. The EMS software should be installed on a PC-type computer and the PC’s COMM port should be configured to interface with the HU. For information about installing the EMS software and configuring the PC’s COMM port, refer to the Digivance Element Management System User Manual (see Related Publications section). Click to view drop down menu Figure 3-1.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 11. New Control program software and FPGA program software will be provided separately on a “as needed” basis. If new Control and FPGA software is not provided with the system, proceed to step 12. If a Control and FPGA software upgrade is required, contact the ADC Technical Assistance Center (see Section 5) for help with the download procedure. 12. Click on the HOST Config tab and on the REMOTE Config tab (see Figure 3-2).
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 24. If a separate laptop computer loaded with the EMS software was used to initially configure the system, disconnect the laptop computer from the SERVICE connector. Note: When two or more HU’s are connected together through the CAN interface, only one EMS computer is required to manage the networked Digivance systems. The EMS computer may be connected to the SERVICE port on any one of the HUs in the network. 25.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION ENHANCED BASE TRANSCEIVER STATION 806-824 RECEIVER 896-901 RECEIVER 851-869 TRANSMITTER 935-940 TRANSMITTER EXTERNAL ATTENUATORS REVERSE PATH OUTPUT SIGNAL LEVEL AS SET BY HOST REVERSE PATH ATTENUATORS 0 to 31 dB ATTENUATORS (HOST REV ATT) 0 to 31 dB ATTENUATORS (HOST FWD ATT) HOST UNIT RF, OPTICS, AND CONTROL FORWARD PATH INPUT SIGNAL LEVEL AT HOST UNIT (-20 dBm OPTIMAL COMPOSITE FOR FULL POWER) FORWARD PATH SIGNAL LEVEL AS SET BY H
PAGE 20
ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION ENHANCED BASE TRANSCEIVER STATION RECEIVER TRANSMITTER EXTERNAL ATTENUATOR REVERSE PATH OUTPUT SIGNAL LEVEL AS SET BY HOST REVERSE PATH ATTENUATOR FORWARD PATH INPUT SIGNAL LEVEL AT HOST UNIT (-20 dBm TYPICAL COMPOSITE FOR FULL POWER) HOST UNIT 0 to 31 dB ATTENUATOR (HOST REV ATT) 0 to 31 dB ATTENUATOR (HOST FWD ATT) RF, OPTICS, AND CONTROL FORWARD PATH SIGNAL LEVEL AS SET BY HOST FORWARD PATH ATTENUATOR (ADJUST TO -40 dBm COMPOSITE FO
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 5. Determine the total cable loss that is imposed by the forward path coaxial cable that links the EBTS to the HU and also any insertion loss imposed by splitters or combiners. 6. Subtract the total cable loss and any insertion losses from the total composite power calculated in step 4. 7. Subtract –20 (optimum input signal level) from the value determined in step 6.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Click on the Edit button to open pop-up screen HOST Site Number HOST Site Name REMOTE Site Number (Entered automatically when the HOST site number is selected) REMOTE Site Name Figure 3-5. HOST and REMOTE Config Displays Figure 3-6. HOST Site Name Pop-Up Screen 3. Click on the HOST Site Number Edit button (see Figure 3-5). The Site Number pop-up screen will open.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 2.3 Reference Procedure: Enter Host Forward Attenuation The HU internal forward path attenuator setting determines the maximum composite output signal level at the RU antenna port. The appropriate attenuation value for any particular system is based on the number of channels the system is transporting and the signal level of the composite forward path signals input at the host units RF IN ports.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Figure 3-8. Host Fwd Att Pop-Up Screen 4. Determine the appropriate value to enter for the Host forward path attenuator by subtracting the required system output level (per system design plan) from the system gain (78.1 dB for 800/900 MHz SMR, 78.5 for 800 MHz, and 77.7 dB for 1900 MHz) and then adding the composite input signal level. The result (see sample calculation) is the amount of attenuation required.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 7. Calculate the total composite signal power using the following formula: Ptot = Pc + 10Log N Where, Ptot is the total composite power in dBm Pc is the power per carrier in dBm as measured in step 6, and N is the total number of channels. 8. Record the result measured in step 5 or calculated in step 7. 9. Place the AC circuit breaker switch (at the RU power panel) in the open (OFF) position. 10.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Click Edit button to open the Remote Fwd Att pop-up screen RF output signal level (± 3 dB) Figure 3-9. Typical REMOTE LPA Display Figure 3-10. Remote Fwd Att Pop-Up Screen 5. Enter the required attenuation value and click OK to close the pop-up screen and to make the changes take effect. 6. Verify that the appropriate RF output signal level appears in the RF Output Power field (see Figure 3-9).
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 2.6 Reference Procedure: Enter Host Reverse Attenuation The level of the RF signal that should be input to the EBTS will vary depending on the type of EBTS, the receive distribution, and the number of channels present. To interface with the EBTS, the reverse path signal level must be adjusted to provide the signal level required at the EBTS input port(s). The HU provides from –1 to +30 dB of gain in the reverse path.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Figure 3-12. Host Rev Att Pop-Up Screen 6. Enter the attenuation value that will provide the required gain. Refer to Table 3-2 for the attenuation values and the corresponding gain (nominal) values. 7. Click OK to close the pop-up screen and to make the changes take effect. Table 3-2. Reverse Path Attenuation Setting and Nominal Gain Provided ATTENUATION SETTING 2.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION 1. Click on the HOST RF tab. The HOST RF display will open within the EMS main window as shown in Figure 3-13. Click Edit button to open the Host Fwd Delay pop-up screen Click Edit button to open the Host Rev Delay pop-up screen Figure 3-13. Typical HOST RF Display 2. Click on the Host Fwd Delay field Edit button (see Figure 3-13). The Host Fwd Delay pop-up screen will open as shown in Figure 3-14. Figure 3-14.
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ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION Blank Page 3-18 © 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE SECTION 4: MAINTENANCE Content Page 1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 2 FAULT DETECTION AND ALARM REPORTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 3 FAULT ISOLATION AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 2 FAULT DETECTION AND ALARM REPORTING The Digivance LRCS on-board embedded software detects various unit and system faults which generate either a Major or Minor alarm. A Major alarm indicates that the system has failed in a way that directly affects RF transport performance. When a major alarm occurs, all RF functions are disabled and the system is out of service.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-1. Host Unit LED Indicators INDICATOR COLOR DESCRIPTION Green Off Indicates if the HU is powered or un-powered. The DC power source is on. The DC power source is off. POWER STANDBY Indicates if the system is in the standby, normal, test, or program load mode. Green (blinking) The HU is in the standby mode. Yellow (blinking) The HU is in the program load mode. The HU is in the test mode.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 3 FAULT ISOLATION AND TROUBLESHOOTING Alarm information may be accessed using the HU and RU LED indicators, the EMS software GUI, the NOC-NEM interface, or the SNMP manager. When an alarm occurs, use the unit LED indicator(s) and any one of the specified software tools to determine which Digivance system is affected, which unit (HU or RU) reported the alarm, and the fault that generated the alarm. Then refer to either Section 3.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 3.1 Host Unit Troubleshooting Use this section to troubleshoot alarms that originate with the Host Unit. When a Minor alarm occurs, one (or more) of the Host Unit LED’s will turn yellow and the EMS software will indicate a minor fault/alarm. When a Major alarm occurs, one (or more) of the Host Unit LED’s will turn red and the EMS software will report a major fault/alarm.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-3.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-4. Host Unit Fault/Alarm Corrective Action, continued PROBLEM C: The RF input signal level is below the underdrive threshold. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Composite output signal from EBTS is too low. 1. Check EBTS composite output signal level and adjust if too low. 2. Correct EBTS cables if faulty. 2. Faulty coaxial connection between the HU and the EBTS. 3. Check Host Forward Attenuator setting and 3.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-5.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-5.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE Table 4-6. Remote Unit Fault/Alarm Corrective Action, continued PROBLEM D: The forward path VSWR is above threshold. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty antenna or antenna system. 1. Check the antenna system for shorts or opens (including lightning protector). To reset, use EMS to place Digivance system in standby mode and then place system back in normal mode. 2. Check the antenna cable for faulty connections. 3.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 4 TEST PROCEDURES This section provides procedures for common troubleshooting and maintenance tests. Refer to these procedures as needed when specified in the Fault/Alarm Isolation Diagrams in Section 3. 4.1 Optical Power Test A break in an optical fiber or a fault with the optical connector will interrupt communications between linked components or generate excessive errors.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 7. Connect the input (transmitter) end of the optical fiber to the transmitting HU or RU. 8. If the transmitting unit is the HU, place the On/Off switch in the ON position (press I). If the transmitting unit is the RU, close (turn on) the AC circuit breaker switch. 9. Using the transmitting HU or RU as an optical light source, measure the optical power at the receiver end of the optical fiber.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE 15. If the transmitting unit is the HU, place the On/Off switch in the OFF position (press O). If the transmitting unit is the RU, open (turn off) the AC circuit breaker switch. 16. Disconnect the optical power meter from the receiver end of the optical fiber. 17. Reconnect the optical fibers to the receiving HU or RU. 18. Repeat steps 3 through 17 for each optical fiber that requires testing. 19.
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ADCP-75-187 • Issue 3 • September 2006 • Section 4: MAINTENANCE HOST UNIT FWD (PORT 1) REV (PORT 2) 20019-C 15 dB ATTENUATOR 1 METER PATCH CORD Figure 4-4. Host Unit Loopback Test 8. Observe the FWD/REV (PORT 1/PORT 2) LED indicator which will turn either red or green. If the LED turns red, either the FWD (PORT 1) optical transmitter or the REV (PORT 2) receiver is faulty. If the LED turns green, both the FWD (PORT 1) and the REV (PORT 2) optical ports are good. 9.
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ADCP-75-187 • Issue 3 • September 2006 • Section 5: GENERAL INFORMATION SECTION 5: GENERAL INFORMATION Content Page 1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 2 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-187 • Issue 3 • September 2006 • Section 5: GENERAL INFORMATION 4 REPAIR CHARGES If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges.
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ADCP-75-187 • Issue 3 • September 2006 • Section 5: GENERAL INFORMATION 7 CUSTOMER INFORMATION AND ASSISTANCE PHONE: U.S.A.
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